Thin aerosol clouds at tropopause level

Aerosol clouds about 2 km below the tropopause are studied using the data from lidar and MST radar at Gadanki. The cloud shows fluctuations with time scales as short as 1/2 h in the backscatter ratio. Depolarization factor indicates ice crystal formation when the cloud is strong. The MST radar wind...

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Bibliographic Details
Published in:Indian journal of radio & space physics 2000-08, Vol.29 (4), p.245-248
Main Authors: Murthy, BVKrishna, Nayar, SRPrabhakaran, Revathy, K, Satheesan, K, Parameswaran, K, Nair, Prabha R, Murthy, KKrishna, Rao, P B, Bhavanikumar, Y, Raghunath, K, Sivakumar, V, Krishniah, M
Format: Article
Language:English
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Summary:Aerosol clouds about 2 km below the tropopause are studied using the data from lidar and MST radar at Gadanki. The cloud shows fluctuations with time scales as short as 1/2 h in the backscatter ratio. Depolarization factor indicates ice crystal formation when the cloud is strong. The MST radar wind data show strong turbulence below the cloud level indicating, probably, turbulent mixing /transport of water vapour from lower heights to cloud heights facilitating cloud formation.
ISSN:0367-8393